Latch



G. E. ROEDDING Dea l5, 19,31.

LATCH Filed sept. 2, 1930 *I 111,111,111 ffl/1,

las

Patented Dec. 15, 1931 NITED STATES PATENTY 'o1-*FICE* i* GORDON E. ROEDD-ING, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR `'IO GRAND RAPIDS BRASS COMPANY, OF GRAND RAPIDS, MICHIGAN, YA CORPORATIONHOF MICHIGAN ,Y

LATCH Application filed September The present invention relates to latches; and its object is, generally, to provide an 1mproved structure of that character; and more particularly, to provide such a latch having a swingable latchA bolt and lever handle and improved means for urging the latch bolt to its latching and retracted positions respectively, such structure comprising parts readily assembled.

This and any other and more specific objects hereinafter appearing are attained by, and the invention finds preferable embodiment in, the latch structure hereinafter particularly described in the body of this spec-ifcation and illustrated by the accompanyingT drawings, in which: Y igure 1 is a front view of a latch and its `kee er mounted on a door closure and its jam respectively, the latch casing being sectioned on line 1-1 of Figure 3;

Figure 2 is a similar view of portions of ythe latch and casing sectioned on the same plane, but showing the parts in another'position;

Figure 3 is a sectional view thereof taken on line 3-3 of Figure l;

Figure 4 is a left-hand elevational'view thereof, showing the closure partially open; Figure 5 is a sectional view of the latch and casing taken on line 5 5 of` Figures 1 and 2; and

Figure 6 is a view in perspective of the back plate of the latch casing and its forwardly extending parts.

In these drawings is illustrated a latch mounted on a swingable door closure 1 and its keeper 2 mounted on the frame or jamb 3 of the door. The latch has a casing 4 com'- prising a back plate 5 through whose holes 6 and registering holes 7' in the flanges of the casing the mounting screws 8 pass.

This back plate has a forwardly extending plate portion 9 and ears 10, 10. The latch bolt 11 extends through an opening 12 in plate portion 9, bearing in said open-ing, and

is desirably formed of sheet metal bent toY form a middle or web portion 13 and clownwardly extending flanges 14, 14. A notch 15 is formed in the upper side of the latch bolt.

and constitutes a bearing in Which it rocks 2, 1930. serial No. 479,186.

(between operative or latching position seen in Figure 1 and retracted position shown in Figure 2) on the upper edge 16 of the opening 12. The latch bolt is thus rocked by means of a lever handle 17 fulcrumed on a l pivot pin 18 mounted in the openings 19, 19 of the forwardly extending ears 10, 10 of the Vlatch casings .back plate 5. Invregistering notches 21, 21 in the under edges of the latch I bolts flanges 14, 14` bear the laterally extending lugs 22, 22 of a link bar 23 extendingbetween said flanges and having a lug portion 24 bearing in a recess 25 in the middle or web portion 26 ofthe lever handle. This link bar 23 has a longitudinal slot 27 in which `the pivot pin 18 sl'idably bears to guide said member in its movement, and has also lateral shoulders 28,28 engaging the latch bolt at points opposite to the lugs22, 22, so that the movement of the lever handle one way orthe other will swing the latchbolt in opposite directions respectively.

A coiled yexpansion spring 29 is seated at its lower end around the upward lug 30 of plate portion 9, and at its upper end-presses againstV the under edges of the lateral extensions 31, 31 of a rod 32 inside, this spring, these extensions bearing at their upper edges in notches 33 in thelower edges of the latch g bolts flanges 14, 14.

As the latch bolt-swings from one position to the other, this spring 29 passes vthrough the opening 12 from one side to the other of plate portion 9, and thus urges the latch bolt to one or the other of its said positions.

It will be seen that the parts of this latch are of simple although strong construction, and that the same are readily assembledand disassembled. i

The invention being intended to be pointed Y l handle; a link bar connected to the latch bolt and to the lever handle to rock the bolt by the handle.

2. A latch structure comprising: a casing having an internal transverse portion with an opening therethrough; a latch bolt extending through said opening and bearing rockably at one edge on said portion; a lever handle ;a link bar connectedto the latch bolt and to therleve-r handleto rock the bolt by the handle; an expansion spring in said opening pressing the opposite edge of the latch bolt to urge the bolt to latching and retracted positions respectively.

3. A latch structure comprising: a casing having an internal transverse portion a latch bolthaving spaced sides and at one edge a notch bearing rockably on said portion; a lever handle fulcrumed inside the casing; a link bar extending -between said sides and connected to the latch bolt and to the lever handle to rock the bolt by the handle.

4. A latch st ructure comprising: a casing having an internal transverse portion; a latch bolt having spaced sides and at one edge a notch bearing rockably on said portion; a lever handle fulcrumed inside the casing; a link bar extending between said sides and connected tothe latch bolt and to the lever handle to rock the bolt by the handle; an expansion spring pressing the opposite edge of the latch bolt to urge the bolt to latching and retracted positions respectively. Y

5. A latch structure comprising: a casing having an internal 'transverse portion; a latch bolt having spaced sides and at one edge a notch bearing rockably on said'portion; a lever handle ulcrumed inside the casing; a link bar extending between said sides .and connected to the latch bolt and to the 'lever handle to rock the bolt bythe handle; a coiled expansion spring containing a rod and pressing the same on the opposite edge of the latch bolt to urge the bolt to latching and retracted positions respectively.

6. A latch structure comprising: a casing having an internal transverse portion with an opening therethrough; a latch bolt extending through said opening and having spaced sides, a notch at one edge bearing rockably onA said portion, and a notch at its opposite edge; a lever handle fulcrumed inside the casing; a link bar extending between said sides, and connected thereto and to the lever `handle to rock the bolt byV the handle; a coiled expansion spring in said opening; a rod in the spring pressed thereby in the second-mentioned notch to urge Vthe bolt to latching and retracted positions respectively.

7. AV latch structure comprising: a casing having an internal vtransverse portion with an opening therethrough;/a latchl bolt extending through saidV opening andhavingV spaced sides,. anotch at one edge bearing rockably on said portion, and notches in said sides at its opposite edge; a lever handle fulcrumed on a pivot pin inside the casing; a link bar extending between said sides and connected thereto and to the lever handle to rock the bolt by the handle, and having a slot in which the pivot pin bears; a coiled expansion spring in said opening and pressing at one end on one side thereof; a rod surrounded and engaged by the spring and pressed thereby in the notches of said sides to urge the bolt to latching and retracted positions respectively.

8. A latch structure comprising: a casing having an internal transverse portion; a latch bolt having at one edge a notch bearing rockably on said portion and spaced sides having pairs of registering notches at the opposite edge of the latchbolt; a lever'han'- dle fulcrumed on the casing; a link bar extending between said sides and connected to the lever handle and having lateral lugs engaging in one pair of said notches to rock thebolt by the handle; a coiled Aexpansion spring; other pair of said notches tourge the boltV to latching and retracted positions respectively.

9. A latch structure comprising: a casing having an internal transverse portion; a .latch bolt having at one edge a notch bearing rockably on said portion and spaced sides having pairs of registering Vnotches at the opposite edge of the latchbolt; a lever handle Jf'ulcrumed on the casi-ng and having a recess; a link bar extending between said sides and having a lug engaging in said recess and lateral lugs engaging in one pair of said notches to rock the bolt by the handle; a coiled expansion spring; a rod in the spring engaging in the other pair of said notches to urge the bolt to latching and retracted positions respectively.

In testimony whereof I have hereunto set my hand at Grand Rapids, Michigan, this 28th day of August, 1930.

GORDON E. ROEDDING- a rod in the spring engaging in the 

